DREXEL CHEMISTRY 103 EXAM 2
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS 100%
CORRECT RATED A+
alcohols -ANSWER ✔✔R-O-H
R= alkyl
types of alcohol -ANSWER ✔✔1. primary when OH attached to C-C
2. secondary when OH attached to C-C-C
3. tertiary when OH attached to C-C-C-C
naming alcohols -ANSWER ✔✔1. methanol - methyl alcohol (wood alcohol)
2. ethanol - ethyl alcohol
3. 1-propanol - n-propanol
4. 2-propanol - isopropanol (rubbing alcohol)
OH group -ANSWER ✔✔hydroxy group when a substituent
- 2 propanol called isopropyl alcohol
alkanediols -ANSWER ✔✔alcohols w/more than one hydroxyl group are
polyhedric alcohols and are named as alkane derivatives
- 1,2-ethanediol (antifreeze) aka ethylene glycol
- 1,2,3-propanetriol aka glycerol or glycerine
diol -ANSWER ✔✔glycol
,hydroxybenzene -ANSWER ✔✔phenol
properties of alcohol -ANSWER ✔✔-BP high cause of H-bonding
-higher rate of BP, slower evaporation
-solubility in water- decreases as size of hydrocarbon chain inc., <5 carbons per
OH is water-soluble
oxidizing agent -ANSWER ✔✔- oxygen
- KmnO4
- K2Cr2O7
first degree alcohol -ANSWER ✔✔- plus O gives you aldehyde
- plus another O gives you a carboxylic acid
second degree alcohol -ANSWER ✔✔- plus O gives you ketone
third degree alcohol -ANSWER ✔✔- plus O gives you no reaction
chemical properties of alcohol: first degree -ANSWER ✔✔methanol ~alc.
dehyd.~ aldehyde + H2O ~ald. dehyd.~ acetic acid
chemical properties of alcohol: first degree ex. 2 -ANSWER ✔✔methanol ~ alc.
dehydrogenase~ formaldehyde + H2O ~aldehyde dehyd.~ formic acid
- toxic
, chemical properties of alcohol: second degree -ANSWER ✔✔2-propanol ~alc.
dehyd.~ 2-propanone (ketone) + H2O
chemical properties of alcohol: third degree -ANSWER ✔✔no reaction
2-methyl-1-propanol -ANSWER ✔✔- alcohol dehyd. then aldehyde dehyd.
- carboxylic acid
phenols -ANSWER ✔✔- very easily oxidized
- starting materials for production of polymers
- anesthetics
- disinfectants
- antopxidants
diprivan -ANSWER ✔✔diisopropyl intravenous anesthetic
propofol -ANSWER ✔✔2,6-diisopropylphenol
properties -ANSWER ✔✔- ease of oxidation
- mixture of products
BHT -ANSWER ✔✔butylated hydroxy toluene
- food additive (antioxidant)
- 3,5-di-tert-butyl-4-hydroxytoluene
- 2,6,-di-tert-butyl-4methylphenol
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS 100%
CORRECT RATED A+
alcohols -ANSWER ✔✔R-O-H
R= alkyl
types of alcohol -ANSWER ✔✔1. primary when OH attached to C-C
2. secondary when OH attached to C-C-C
3. tertiary when OH attached to C-C-C-C
naming alcohols -ANSWER ✔✔1. methanol - methyl alcohol (wood alcohol)
2. ethanol - ethyl alcohol
3. 1-propanol - n-propanol
4. 2-propanol - isopropanol (rubbing alcohol)
OH group -ANSWER ✔✔hydroxy group when a substituent
- 2 propanol called isopropyl alcohol
alkanediols -ANSWER ✔✔alcohols w/more than one hydroxyl group are
polyhedric alcohols and are named as alkane derivatives
- 1,2-ethanediol (antifreeze) aka ethylene glycol
- 1,2,3-propanetriol aka glycerol or glycerine
diol -ANSWER ✔✔glycol
,hydroxybenzene -ANSWER ✔✔phenol
properties of alcohol -ANSWER ✔✔-BP high cause of H-bonding
-higher rate of BP, slower evaporation
-solubility in water- decreases as size of hydrocarbon chain inc., <5 carbons per
OH is water-soluble
oxidizing agent -ANSWER ✔✔- oxygen
- KmnO4
- K2Cr2O7
first degree alcohol -ANSWER ✔✔- plus O gives you aldehyde
- plus another O gives you a carboxylic acid
second degree alcohol -ANSWER ✔✔- plus O gives you ketone
third degree alcohol -ANSWER ✔✔- plus O gives you no reaction
chemical properties of alcohol: first degree -ANSWER ✔✔methanol ~alc.
dehyd.~ aldehyde + H2O ~ald. dehyd.~ acetic acid
chemical properties of alcohol: first degree ex. 2 -ANSWER ✔✔methanol ~ alc.
dehydrogenase~ formaldehyde + H2O ~aldehyde dehyd.~ formic acid
- toxic
, chemical properties of alcohol: second degree -ANSWER ✔✔2-propanol ~alc.
dehyd.~ 2-propanone (ketone) + H2O
chemical properties of alcohol: third degree -ANSWER ✔✔no reaction
2-methyl-1-propanol -ANSWER ✔✔- alcohol dehyd. then aldehyde dehyd.
- carboxylic acid
phenols -ANSWER ✔✔- very easily oxidized
- starting materials for production of polymers
- anesthetics
- disinfectants
- antopxidants
diprivan -ANSWER ✔✔diisopropyl intravenous anesthetic
propofol -ANSWER ✔✔2,6-diisopropylphenol
properties -ANSWER ✔✔- ease of oxidation
- mixture of products
BHT -ANSWER ✔✔butylated hydroxy toluene
- food additive (antioxidant)
- 3,5-di-tert-butyl-4-hydroxytoluene
- 2,6,-di-tert-butyl-4methylphenol
